Network - iwlwifi seemed to work untill it connected to the AP (wpa2) and nothing more (no traffic, no ping). b44 worked fine (Ethernet).
can you try the kernel from here:
http://people.redhat.com/davej/kernels/Fedora/fc7/RPMS.kernel/ iwlwifi works fine for me using this (and the previous one) the version in the livecd does not even connet to my wpa/wpa2 ap. but no everything seems to work with it, traffic, ping etc.